private void EDITDATAULTIMACOMPRA_DragLeave(object sender, EventArgs e) { if (EDITDATAULTIMACOMPRA.Text != "" && EDITDATAULTIMACOMPRA.Text != null) { DateTime wdt; try { wdt = Convert.ToDateTime(EDITDATAULTIMACOMPRA.Text); } catch (Exception erro) { MessageBox.Show(erro.ToString(), "Erro com a data informada."); EDITDATAULTIMACOMPRA.Clear(); EDITDATAULTIMACOMPRA.Focus(); } } }